Improvement in slates



W. A. KENYON, In

Slate.

' Patented my 16, 1872, No. 129,142` yl vTo all whom t may concern:

UNITED STATES PATENT OFFICE.

WILLIAM A. KENYON, JR., OF LANCASTER, OHIO.

IMPROVEMENT IN SLATES..

Specification forming part of Lettere Patent No. 129,142, dated July 16,187%.

Be it known that I, WM. A. KENYON, J r., of Lancaster, in the oounty ofFairfield and State of Ohio,have invented certain new and usefulImprovements in Slate-Rulers 3 and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawing and to the letters of referencemarked thereon which forms a part of this specification.

The nature of my invention consists in providingV a slate with a movableor adjustable sliding ruler, which ruler may have a peucil-holder at oneend.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing,l in which-Figure 1 is a side view and Fig. 2 an end view of the slate and ruler.

A represents the frame and B the plate of an ordinary slate. On thesides of the frame A are cut or otherwise permanently axed cross-lines aa, at suitable intervals, which are intended to set the ruler C by.This` ruler may be made of sheet metal or other suitable material, ofany desired width, and so as to surround the slate. It is slipped overthe slate, and then pressed inward at the inner edge of the frame, so asto be close to the plate B, and still be readily moved up and down onthe slate. I

When it is desired to make lines very close together, the ruler O may bemade comparatively wide and have a longitudinal slot,

b, of the desired width. At one end of the4 ruler O may be formed a tube0r socket, D, while at the other is a ring, d, for attaching the cordtied to the pencil, for hanging up the slate, or for any purposeldesired. A

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The rulers O G, constructed to surround y the slate and frame, andslide thereon, thus allowing the slate to be ruled equally upon bothsides.

2. The rulers O C, provided with sockets D D and rings del, arranged, inconnection with a slate having its frame ruled or notched, as shown andfor the purpose set forth.

In testimony that I claim the foregoing as my own, I affix my signaturein presence of two witnesses.

WILLIAM A. KENYON, JR.

Witnesses:

CHARLES I. SWEET, VIEGIL E. SHAW.

